Developed by Midway – San Diego, Doom 64 is a unofficial sequel to Doom II developed for the Nintendo 64 and was released in March 97. Based on the Jaguar and Playstation code base, Doom 64 is considered the most technically advanced Doom game of its time. In addition to the completely revamped rendering engine, Doom 64 went through numerous changes and improvements from that of Doom II. No graphics or sounds from Doom II have been reused in Doom 64; instead, it features completely new sprites, textures, levels and sounds and features a completely different art style.